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InstanceLink unique constraint source and target

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Prevent creating InstanceLinks with duplicate
source and target pairings.

Signed-off-by: Seth Foster <fosterbseth@gmail.com>
This commit is contained in:
Seth Foster
2024-01-31 15:59:44 -05:00
committed by Seth Foster
parent eeae1d59d4
commit 21fd6af0f9
2 changed files with 14 additions and 0 deletions
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6
awx/main/migrations/0189_inbound_hop_nodes.py
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@@ -141,4 +141,10 @@ class Migration(migrations.Migration):
help_text='The target receptor address of this peer link.', on_delete=django.db.models.deletion.CASCADE, to='main.receptoraddress' help_text='The target receptor address of this peer link.', on_delete=django.db.models.deletion.CASCADE, to='main.receptoraddress'
), ),
), ),
migrations.AddConstraint(
model_name='instancelink',
constraint=models.UniqueConstraint(
fields=('source', 'target'), name='unique_source_target', violation_error_message='Field source and target must be unique together.'
),
),
] ]

8
awx/main/models/ha.py
View File

@@ -67,6 +67,14 @@ class HasPolicyEditsMixin(HasEditsMixin):
class InstanceLink(BaseModel): class InstanceLink(BaseModel):
class Meta: class Meta:
ordering = ("id",) ordering = ("id",)
# add constraint for source and target to be unique together
constraints = [
models.UniqueConstraint(
fields=["source", "target"],
name="unique_source_target",
violation_error_message=_("Field source and target must be unique together."),
)
]
source = models.ForeignKey('Instance', on_delete=models.CASCADE, help_text=_("The source instance of this peer link.")) source = models.ForeignKey('Instance', on_delete=models.CASCADE, help_text=_("The source instance of this peer link."))
target = models.ForeignKey('ReceptorAddress', on_delete=models.CASCADE, help_text=_("The target receptor address of this peer link.")) target = models.ForeignKey('ReceptorAddress', on_delete=models.CASCADE, help_text=_("The target receptor address of this peer link."))